diff --git a/runtime/doc/mbyte.txt b/runtime/doc/mbyte.txt
index 7a5cca3..08c3ac1 100644
--- a/runtime/doc/mbyte.txt
+++ b/runtime/doc/mbyte.txt
@@ -1,4 +1,4 @@
-*mbyte.txt*     For Vim version 8.2.  Last change: 2021 Apr 05
+*mbyte.txt*     For Vim version 8.2.  Last change: 2021 Oct 04
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar et al.
@@ -1132,7 +1132,7 @@
 and what the keymaps are to get those characters:
 
 glyph   encoding	   keymap ~
-Char   utf-8 cp1255  hebrew  hebrewp  name ~
+Char UTF-8 cp1255  hebrew  hebrewp  name ~
 א    0x5d0  0xe0     t	      a     'alef
 ב    0x5d1  0xe1     c	      b     bet
 ג    0x5d2  0xe2     d	      g     gimel
@@ -1185,11 +1185,11 @@
 ױ    0x5f1  0xd5     VY      VY   vav-yod
 ײ    0x5f2  0xd6     YY      YY   yod-yod
 
-The following are only available in utf-8
+The following are only available in UTF-8
 
 Cantillation marks:
 glyph
-Char utf-8 hebrew name
+Char UTF-8 hebrew name
 ב֑    0x591   C:   etnahta
 ב֒    0x592   Cs   segol
 ב֓    0x593   CS   shalshelet
@@ -1300,7 +1300,7 @@
 internally.
 
 Vim has comprehensive UTF-8 support.  It works well in:
-- xterm with utf-8 support enabled
+- xterm with UTF-8 support enabled
 - Athena, Motif and GTK GUI
 - MS-Windows GUI
 - several other platforms
@@ -1313,13 +1313,13 @@
 							*bom-bytes*
 When reading a file a BOM (Byte Order Mark) can be used to recognize the
 Unicode encoding:
-	EF BB BF     utf-8
-	FE FF        utf-16 big endian
-	FF FE        utf-16 little endian
-	00 00 FE FF  utf-32 big endian
-	FF FE 00 00  utf-32 little endian
+	EF BB BF     UTF-8
+	FE FF        UTF-16 big endian
+	FF FE        UTF-16 little endian
+	00 00 FE FF  UTF-32 big endian
+	FF FE 00 00  UTF-32 little endian
 
-Utf-8 is the recommended encoding.  Note that it's difficult to tell utf-16
+UTF-8 is the recommended encoding.  Note that it's difficult to tell utf-16
 and utf-32 apart.  Utf-16 is often used on MS-Windows, utf-32 is not
 widespread as file format.
 
@@ -1365,8 +1365,8 @@
 
 STARTING VIM
 
-If your current locale is in an utf-8 encoding, Vim will automatically start
-in utf-8 mode.
+If your current locale is in an UTF-8 encoding, Vim will automatically start
+in UTF-8 mode.
 
 If you are using another locale: >
 
@@ -1399,10 +1399,10 @@
 TYPING UTF-8						*utf-8-typing*
 
 If you are using X-Windows, you should find an input method that supports
-utf-8.
+UTF-8.
 
-If your system does not provide support for typing utf-8, you can use the
-'keymap' feature.  This allows writing a keymap file, which defines a utf-8
+If your system does not provide support for typing UTF-8, you can use the
+'keymap' feature.  This allows writing a keymap file, which defines a UTF-8
 character as a sequence of ASCII characters.  See |mbyte-keymap|.
 
 Another method is to set the current locale to the language you want to use